Triple eccentric butterfly valve, D343H butterfly valve, cast steel butterfly valve, hard seal butterfly valve, Zhejiang butterfly valve,

Zhejiang Putian triple eccentric butterfly valves are suitable for flow regulation. Due to the significant pressure loss of butterfly valves in pipelines, the robustness of the disc when closed under pipeline medium pressure must also be considered. Additionally, the limitations of the elastic seat material under high temperatures must be taken into account. Butterfly valves have a short structural length and overall height, fast opening and closing speeds, and fluid control characteristics, making their structural principle suitable for manufacturing large-diameter valves. When using butterfly valves for flow control, it is important to correctly select the size and type to ensure proper and effective operation.

Zhejiang Putian triple eccentric butterfly valveTypically, in throttling, regulation control, and slurry media, a short structural length and fast opening and closing speeds(1/4 turn) are required. For low-pressure shut-off (small pressure difference), butterfly valves are recommended.

Zhejiang Putian triple eccentric butterfly valveFor two-position regulation, constricted channels, low noise, cavitation and vaporization phenomena, minor leakage to the atmosphere, and abrasive media, butterfly valves can be selected.

Zhejiang Putian triple eccentric butterfly valveFor throttling regulation under special working conditions, or where strict sealing is required, or in severe wear, low temperature(cryogenic) conditions, specially designed triple or double eccentric butterfly valves with metal sealing and regulation devices are needed.

Zhejiang Putian triple eccentricbutterfly valves are suitable for applications requiringstrictsealing, zero gas test leakage, high lifespan requirements, and operating temperatures between-10°C to 150°C in pipelines for freshwater, sewage, seawater, saline, steam, natural gas, food, oil, various acids and alkalis, and other media.

Zhejiang Putiansoft seal eccentric butterfly valves are suitable for bidirectional opening and closing and regulation in ventilation and dust removal pipelines, widely used in gas pipelines and water channels in metallurgy, light industry, electric power, and petrochemical systems.

Zhejiang Putian triple eccentricmetal-to-metal line seal double eccentric butterfly valves are suitable for pipelines such as urban heating, gas supply, water supply, oil, acids, and alkalis, serving as regulation and throttling devices.

Zhejiang Putian triple eccentricmetal-to-metal face seal triple eccentric butterfly valves, in addition to being used as program control valves in large pressure swing adsorption(PSA) gas separation units, are also widely used in petroleum, petrochemical, chemical, metallurgical, and electric power industries.

Zhejiang PutianWorking principle of triple eccentric metal hard seal butterfly valve: In a typical triple eccentric metal seal butterfly valve, besides the two eccentrics of the valve stem and disc, the sealing surfaces of the disc and seat are conical (the third eccentricity). When the valve closes, the disc is pushed forward due to eccentricity, avoiding friction during closure, and the disc directly presses on the seat, ensuring the valve's lifespan;